Make sure to have the Yealink USB Connect software downloaded to the connected PC to be able to update firmware, reboot headset, access advanced settings and factory reset the headset.
**https://www.yealink.com/product/yuc**
Always use supplied power adaptor for source of power to ensure all features are enabled. For best feature controls and firmware updates use Yealink USB Connect https://www,yealink.com/product/yuc
Note: Power off will only disconnect connection between base and the headset but not delete the pairing information.
Call indicator light – PC/ Desk Phone Button
Off (no light) – PC/desk phone device not connected
Glows White – PC/desk phone device connected in idle status
Glows Green – PC headset in use/desk phone device active call
Flashes Green – Desk phone device enabled and ringing